Weathermatic Wireless On-Site 900 mHz Weather Station Real-time weather data recording and processing enables ET-based water scheduling to occur Adjustable Rain Sensor - 1/8, 1/4, 1/2, and 3/4 inch Prevents watering during freezing weather - below 37 Degree/3 Degree Compatible with the Smart Line controller family SLW5 900mhz Range - 1,500ft LOS Real-time weather data recording and processing enables ET-based water scheduling to occur Prevents watering during freezing weather - below 37 Degree/3 Degree Compatible with the Smart Line controller family SLW5 900mhz Range - 1,500ft LOS